Inhaler



P. H. TODD Feb. 8, 1949.

INHALER Filed May 17, 1946 INVENTOR. Fau/ /7, Todd BY I (WM gm ATTORNEY Patented Feb. 8, 1949 UNITED STATES PATENT OFFICEv INHALER Paul H. Todd, Kalamazoo, Mich.

Application May 1'7, 1946, Serial No. 670,623

1 Claim. 1

The main objects of this invention are:

First, to provide an inhaler which when closed is effectively sealed to prevent evaporation of the medicament and to maintain the inhaler in a sanitary condition.

Second, to provide an inhaler embodying few parts and one in which theparts are economical to produce and assemble. r 7

Objects relating to details and economies of the invention will appear from the description to follow. The invention is defined in the claim.

A preferred embodiment of the invention is illustrated in the accompanying drawing, in

which:

Fig. 1 is a longitudinal section of an inhaler embodying my invention, the medicament carrying material being conventionally illustrated, the structure being considerably enlarged as compared to commercial sizes.

Fig. 2 is a cross section on a line corresponding to line 2-2 of Fig. 1.

Fig. 3 is a fragmentary side elevation with the j cover removed.

The embodiment of my invention illustrated comprises a tubular medicament container l preferably formed of thin metal such as aluminum nd having a convexly roundednasal tip 2' with The casing or cover Ii is also tubularin shape and is provided with a closed convexly curved outer end and has its inner end rolled outwardly into a bead-like flange l2. The cover closes over.

the gasket in sealing retaining engagement there with. The casing entirely encloses the container 3 and is'supported in concentric relation thereto;

Both the'container and the cover may be formed of relatively light metal, the base member constituting a supporting and protecting element therefor. V

The parts are simple and economical to produce and veryeasily and quickly assembled, the I only machine operation in assembling being rolling or spinning of the lower end of the container into the groove. I

I have illustrated and described a bodiment of the invention; I have not attempted to illustrate or describe other embodiments, as it is believed that this disclosure will enable-those skilled in the art to embody or adapt the invention-as may bedesired.

Having thus described my inventiongvwhat I claim as new and desire to secure by Letters Pat- 5 ent is:

An inhaler comprising ing a cylindrical portion thereon and defining an a central opening 3 therein. The base 4 is preferably molded of plastic material and is provided with a cylindrical portion 5 fitting within the lower portion of the container l and having an annular outwardly facing groove 6 therein into which the lower end I of the casing is pressed in closely fitting supporting relation. The groove is of curved section and the container wall being pressed therein provides a correspondingly outwardly facing groove receiving the resilient. an- I with an. air inlet Number 1 Name Date j Re. 21,831 Hoffman June 17, 1941 2,404,409 Smith July 23, 1946 FOREIGN PATENTS Number Country Date annular groove therearound, a generally cylindrical container having one end pressed into said annular groove. an annular ring of elastic material positioned in said grooveand a generally cylindrical cover member arranged to fit over said ring and be held in place thereby. v

' PAUL H. TODD.

REFERENCES CITED Thefollowingreferences areof record in'the fileof-this patent;

UNITED STATES PATENTS 337,656 Great Britain 'Nov. 6; 1930 practical 'em- 4 a base member hay- 

